Suction-creating apparatus



B. SKIDMORE, JR.` sucloN caEATlNo APPARATUS. APPLICATION FILED M'AR. 27; 19l9. y Patented Mar. 14, 1922.

2 SHEETS-SHEET l.

B'. SKIDMOREl In. SUCTION CREATING APPARATUS. APPucATloN man MAR. 21. 191s.

^ 2 SHEETS-SHEET 2.

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IHHIH Patented Mar. 14, 1922.

Figure 2.

Nrrao sTAes/ BENJAMIN sKInI/Ioan', JR., `or CHICAGO, IIILINoIs.

sUcrIoN-CREATING APPARATUS.

To all whom t 71mg/ concern l vBe it known that I, BENJAMIN SKIDMQRE,

Jr., a citizen of the United States, residing at Chicago, in the county of Cook and State4 of Illinois, have., invented certain new and useful Improvements in Suction-Creating Apparatus, of which the following is a speciication.

This invention relates to improvements in suction creating apparatus and one of the objects of the invention is to provide anA improved apparatus of this character embodying an impeller having provisions for `dis` placing a fluid and which displacement of the fiuid operates to create a suction upon another fluid confined in a chamber or conduit, the apparatus being also :provided with one or more volutes into which the displaced liquid is delivered by the impeller andl the movement of the liquid in and through the volutes will operate tocause additionalqor further `displacement or suction uponthe fluid in the chamber or conduit.

To the attainment of these ends `and the accomplishment of other new and useful Kobjects aswill appear, the `invention consists Y' in the features ofznovelty in substantially the construction, :combination and arrange-V ment of the Vseveral parts hereinafter! more fully described Vand claimedand yshown in the accompanying drawingsillustratingthis invention and in which'- Figurel isa vertical sectional view of an improved apparatus of this" character constructed in accordance with the principles of this invention and as taken on line1-1,

Figure 2 is a vertical sectional view as taken on line 2 2, Figure l.

Figure 3 is a view similar to Figure 1 showing the partsin anotherr position.

Referring more particularly to the drawings the numeral 10 designates a tank or receptacle in which the apparatus may be located and is provided with a discharge outlet passage 11 for the `fluid, and in which passagev may be arranged a controlling valve 12.

The tank or receptacle 10 may be of any desired size and configuration and supportedin any suitable manner such as by means of legs 13.- Y Arranged within the tank is a casing designated generally by the reference numeral 14. This casing is provided with an inlet 15 by means of which the liquid in the tank Specification of Letters Patent. A

Application filed March 27,

1919.; serial 110.285,48?. i

OFFICE f atented Mar. 1.4, 1922. Y

will flow into the casing, andthe -casing is also provided with a discharge outletdesig nated generally by therreference number 16 and lwhich discharge outlet is alsodisposed within the tank and at a normal liquid level. Y

Arranged within the casing 14 is a rotary impeller.' 17 which is connected with a shaft 18, the latter having a bearing 19in one Wall of the tank and :having its extremity jourpoint i above .the i naled in another bearing 2O supported by the" Y opposite Wall of thetank.` This shaft- 18 is Y adapted to be rotated in any suitable manner such as by ymeansf-ofa motor 21 so that when the shaft `18 isirotated the impellerl 17 v Y will also be rotated; Thefimpellerisprovidedk with iafffluid passage therethroughV which communicatesawith the-inlet 15. vThis fluid passage may be arranged in any suitable manner but ishere preferably-shown as l comprising-twobranches-1221which radiate l fromthe axisyofrotation'and the passages are preferably curved from the axis towards i the periphery of the impeller'and in a direction -so that the passages will discharge; or

displace the liquid in lthe same general' direction las the'-direction-onrotationlof the impellerfso that theqvelocityof the liquid 85.. peripheral?speedoftheimpeller.: 'This par-Y Y ticula'r arrangement ofthe passagesfhowf l dischargedvwill be substantially equal. to the ever, maybe varied;V YThe'casing'lis provided -vwi-thA'apseries of volute shaped pas-Y sages l 23'24;25 Vwhich merge into the discharge outlet 16, land an additional volute passage 26 may be provided which has communicationwith the casing and which klatter passage is provided vwith a discharge outlet 27f-located above the normal liquid level in 4the tank, so that when the impeller is 1'oi tated' the liquid in the tank flowing into theV 4casing throughV the opening 15 vwill be directed into the -impeller 17 at the center and will flow v throughthe branches 22 ofthe passage through '1 the l`impeller to be discharged by the impeller through its periphery as the impeller rota-tes. I

The liquid y'thus discharged or displaced by the impeller will 'bedclivered'intermit-k tently and successively into the volute passages "23-1-24-25-26 inasmuch as -the inlets of these respective passages are arranged along the line of travel of the impeller.

VAfter the liquid has Vbeen thus delivered into these volute passages it will iiow through sol the passages and be deliveredinto the tank.

shaped element 32 is provided. tocover. and connect these ports. The ports preferablyV extend through the wall of the tank and the elementI 32 is located on the outside of'the tank, although the position andarrangement of these port-s and the element 3Q mauxT be varied; A conduit 33. hasV communiczn tionv with the chamber formed by.j the element.r 32 and in whichL conduitI suction is created'Y by the displacementy of' theliquid by the ,impellen The operation of'tliis portion of the mechanism islas*A follows :j lVheii the liquidis displaced by the' impelier, 1 that isiwhenl itis discharged through thepas sages. 2'2 into the. respective.; volute shaped passages 23--24--t-*2526,` as: the liquidows p astY the pertsfZS, 29, 30,;31, a'l suctionl willf be created in the conduit As: the impeller continues to rotate- 'the dischargey passages 2 -2fwill be cut-ott' or moved out' ot communi; cationy with thek respective' volute passages, so vthat the-liquid flowing through the volute passages afterthedischarge from'the impeller Yhas been cutf oli',4 byrreason-- otA the momentum or', the liquidinthe passage, and inasmuch asgthe port1 isfcon'nected4 with the passage, will-create an additionalfor;further suction which will be manifested in thefcon;

duit-83; n W 1 Y rVliilf-rt-he pr'eerredfo'rn-is of: theinven tion have been' #hereinshown-l and! described itl is to. be understoodg that various changes be 'made in the. details 1 of" construction and `in the combination and: arrangement ol" the severalv partsfwithin thescope citi the cl aimsfwithoutfi depa' rtin from `the spirit-Y ot this.invention.V i

l. Whatris claimedasnew.- is Y Y v l. An apparatus of theY character. d'escribed embody-ing, a.- casi-ngi having. arliquid inlet, .andra rotaryiin/pellen withinthe cass ingsaid impellerfhavingf a-liquid passage therethrough', said casing; embodying; one or.' more volute shaped passagesffor the :liqJj uid',` there being a-fiuid conduit.A having communication with.y the casing whereby when the liquid is discharged 4by they iinpeller into the volute passage; a suction will be created` inthe saidiiuidV-passageandthe movement of the liquid through the volute passage will create-additional suction-.in the Huid Jassage. Y

2. i n apparatus of the character described embodying. a, chamber, an impeller in the chagmbeig ,one orfmore. voluteshaped passages: havinginlets arranged along7 the path. :of movement of. the` impeller to: receive the liquid discharged by the iinpellcr7 and y a conduit having communication with the said4 passages whereby the deliver)v of the liquid by the impeller into the said volute shaped' passa-ges past the point fot dommunication of the conduit and passages will create suction in the conduit, thev movement oftheliquid through the said volute shaped passages creating additional suction in the conduit. 1

3. Anf apparatus! of the: characterl described embodying.l a rotary impeller, ar plura:lit3v1 of volute shaped'passageshaving their inlets arranged iny close; proximit'jy';y to and along the path of movement of' the impeller whereby the liquididisplacedbyther impeller will be discharged into the said passages, and' av tluidf'ccnduit` hav-ing; communication with the: passages whereby the: liquidi deliver-ed into thepassageszwllcreateea suction in. the conduit` the' kinetic energy,- o'f. the liquidin theV said passages-fatter the impeller ceases to: deliver liquid'- thereinto-i operating torcre'azteA additional suction-inthe said pas# 4. Anf apparatus` of the" character de-. scribe d .embodyingA a rotary'f impe-ller; plurality` ofI lvolute shaped passages; vhaving their inlets*arrangedin closeproximty to and aloirggthe path,y otimoveinentot the inn pelle-r where-by l the liquid-displacedbyfthe a impeller will be discharged'y interinittentlfx and successively into the said?,V passagesg.- and a v liuidf cond-uit` having; communication f with the passages@ whereby the" liquid' delivered intothe passagesfwi-ll create are suction linzithe conduit.; the kineticenergy ofthe: liquidfin' theI said;v passages i after 'the impellerf ceases to deliver liquidir ftlierei-nto' operating-"to ion create additionaqlf'sucton 1in' the;l said pasfA` sages.

scribed embodying. ay rotary.; cim'pelleiY hav- :3i-.Anf apparatus of? the character'de- Y ing; a yliquid passage therein, .a :volute shaped f,

passage. having its inletY adjacentthef path o t movement ot .the impeller to receiveztrom the impellertheY licitud-1y displaced thereby, a fluid passage, and meansfwhereby; the'l diseV placement of the liquidfby the-impelle-r will create a suction in :the saidfftuid lpassagea the d; means embodying.; provisions@ whereby 4 name to this -fsple'cilicationl-on thisQlstdat7 offltlarch1A@D; 1919'. Y

ENJAMIN sKrnMenn, Je. 

